Car construction.



1. F. O'CONNOR. CAR cousmucflorv. APPLICATION FILED APR. I4, 1916.

' Patented Jam-7,1919.

2 SHEETS.SHEET I.

. mt amok.

cal sectional UNITED STATES PATENT oration.

JOHN F. O'CONNOR, OF CHICAGO, ILL INOIS, .ASSIGrNOR T0 WILLIAM H. MINER, 0F

. CHAZ Y, NEW YORK.

CAR CONSTRUCTION.

To all whom it ohiiy concern} Be it known that 1, JOHN F. OComwon, a citizen of the United States, residlngat Chicago, in thecounty of Cook and State of Illinois, have invented a certain new and useful Improvement in Car Constructions, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates. to improvements in car construction.

The object of the-invention is to rovide an improved car construction, an more particularly an improved truck bolster, so arranged as to prevent the transfer of the entire weight of one end of a car to a single side bearing. f

Anotherp'bject of the invention is to provide an improved form of truck bolster so arranged as tjti'ninimize the tendency of the truckiandbbdy bolsters to separateat the centerplate-ywhen a car is passing over a banked curved traek.. i

A still further and more general object of the invention is to provide improvedcar construction which will contribute generally to the safety in operation of ears.

In the drawing forming a part of this specification. Figure 1 is a transverse, vertione side of the bolsters. -Fig'. 2 is a top plan view of ,my improved/t-t1ck-bolster. Figs. 3 and 4 are det'ailed's ctional' views taken on the lines 3 -34% respectively, of Fig. 1. And Fig.5,ifs'a view similar to Fig. l which illustrates the/operation e n of the construction while the car 1s passing over a curved track.

v a In the operation of railrdad cars, and

more particularly refrigerator cars which are rxtremel y rigid, there is a constant tendency for the weight of the car at one end to be transferred entirely to the outer side hearing when the ,ear passes over a curved track of a short radius and when the outer rail is elevated more than customary, The effect of the condition above mentioned, is to separate the body and truck bolsters at; the center hearing inasmuch as there is no load at, that point. This, of course, causes derailment and dangerous accidents. With my improved arrangement, part of the load is always carried by the center hearing be tween the holsters and when the load on the outside hearing, as the car passes over view of a portion of a car atv Patented Jan. 7. 1919;

Application filed April 14, 1916. Serial No. 91,207.

a curved track, reaches a. predetermined percentage of the total weight borne-by a truck, an equalizer bar is brought into play by which a part of the load is maintained at the center bearing and the two bolsters prevented from separation. Under all normal conditions, the usual clearance between" i the side bearing members of the bolsters will bemaintained.

Referring now to said drawing, 10-10 denote longitudinal sills'of a freight car, 11 a body bolster having side bearing members 12-42, and 'A the improved truck bolster,said bolsters being united by a centerp1n. 4 t The improved truck bolster A comprises a bolster casting proper 13 having-the usual guides 14, at the ends to cooperate with the column guides of the truck, and a deep groove or recess 15 extending lengthwise of the casting 13, said recess'l5 beingenlarged at the ends thereof as indicated at- 16. Movably mounted within said recess 15,

is an equalizer bar 17 of substantially "reotangular cross-section, said bar 17 having 'a central enlargement 18 which vfits within a corresponding recess 19 formed in the cast- 13., The bottom of the recess .15 is preferably flat between points ,2020 and the bottom edgepf the bar 17 is also prefer: Y

ably flat. The recess 15 at each end beyond the points 20. is curved upwardl as indicated at 21 -21 and the lower e ge of the bar 17, outside of said points :20, is also curved upwardly as indicatedat 22-22, the

upward curve .of the portions 22 of the bar being greater than the upward curvature. of

the portions 21 of the recess so provide clearance as is apparent from an in spection of Figs. 1 and 5. The hub lS'of the bar 17 and the side walls of the recess as to thereby 19 within which said hub is received, are

struck on radii the centers of which coincide with said points 20 on each side of the center pin, thereby permitting the equalizer barfto pivot orrock relatively to the casting 13- about either point 20 as a center. In order to prevent accidental separationof the bar '17 and casting lil, and also to limit the possible relative movement thercbetween, I have provided pins23 seated in the walls of the casting 13, said pins passing through'verticzilly elongated slots 24 in the. equalizer bar. as appears ,from Figs. land 5. 'lhe'bar 17 carries a truck center plate portion 26 whiclr'cotiperateswith a body I when the advaneetruc'k strikesthe curved remaln horizontal l Th I cooperate with;

bolster center plate section 27, as shown in the relative turnthe bolsters. .At 1

new to. Fig; 5, it will a the wheels I 29 of portion-of the track is ,to with the result that excessive pressureqis transferred ,to thc e points 20,, heretofore referred to, are so designed than; when a predetermined portion of'the weightof one end ofth-e car is transferred'to, the outer side bearing 28* (m v this insta'nce, preferably the weight), jthe equalizer hari17 will be tilted about the point 20, to thejposition illustraftedin Fig. 5.

still maintained at the the car to the outer'side bearing 28 is prevented. I In all normal operations of thecar,

' tical. plane,

s t onsi I the equalizerbar=17 Wlll rest upon its fiat" lower edge and rocking willnotgocjcur, thus maintaining the usual clearance between the do bearing members, under normal condi- "@l\lthough I haveherein shown and (lo-- scribed whatI now consider the preferred embodiment of merely illustrative and i I contemplate all changes and modifications that conic within the scope of claims appended hereto.

I claim: v v 1. In car: construction,- the combination with a body bolster ,having side" bearing members, of atruek bolster, thelatter havmg an equalizer bar also carryingi-sidebear ing members cooperablewith saidsidezbear thcbodyg bolster, ,said'bar" mg. members, on being pivotallyv tr Iuck bolster.

mounted relatively to the 2. A truck bolster cars having a single piece equalizer bar :mounted, thereon aml thereto in a versaid bar extending substantially fromone end-to theother end of the bolster.

adapted to move relatively 3. A truck bolster havingan equalizer-"bar roekably' mounted thereon. said bar being adapted to carry side bearing members and being provided with a lower center plate.

is arranged to I the truck portion of the track, the";

outer; side*bearing 28.

rock with 60 per cent-10f It IS apparent that a portion of the load (is center bearings between the bolsters so that.

the two bolsters will not separate and trans fierence of the entire weight ofttheend of 1 said bar's being arranged with-a body bolster of a truck bolster, the atter comprising two members relatively movableina vertical plane.

5. Atr'uck bolster for railway cars comprising-a casting and an equalizer bar rock- .ably' mounted thereon, ranged to coiip'crate with the center bearing -member ofa bodv'bols'ter and adapted'to have 'side'bearing members applied thereto at'its ends:

(i.- A bolster for railway. cars comprising.

vertical plane, said equalizer bar having'its' ends extended said casting. I

7."A truck'bolster for railway cars comprising a casting having a slot extending longitudinally thereof and an equalizer bar :mountcad withinsaid slot and arranged to respect to said casting in a vertical planea and adapted center with a body bolster.

In 'car construction, with a body bolster and a truck bolster comprising,a main "casting, and a single equalto points adjacent the ends of izer bar interposed between said casting and :a vertical planerelativelv tosaid casting and having its center coinciding with the center of the bolster; I a l I I 9. Idcanconstruction, the combination with 'a' body bolster, of a truck bolster comprisinga casting and an equalizer bar,'sai'cl casting having a'slot extending lengthwise "thereotwithin which said bar is mounted,

' said bar and body bolster being swivelly I mounted,-saidequalilzer bar and body bolster my invention, theisameiis n its upper fajce,said bar being rockable relatively to said'casting about pivot points on either-"side of the, center of the bolster, to carry a lower center plate and side bearing members.

' In witness that I claim the foregoing I have hereunto subscribed my name this-28th "day of March 1916;

' JOHN F; OCONNOR.

casting having a slot extending longitudito engage at its said being rockable mounted within a v recess'extendi'ng lengthwise of said casting 4; In car construction, the combination said bar being arthe combination I 

